Every named stream in the Adirondack Park — the feeder waters that line the High Peaks valleys and fill the ponds.
Patterson Brook drains north through the Town of Keene, running parallel to — and eventually crossing under — NY-73 between Keene and Keene Valley. It's a small, quick stream fed by runoff from the ridge systems west of the valley floor; trout may be present in pockets but the brook lacks formal stocking records or angler reputation. The water moves fast in spring, drops to a trickle by August, and disappears entirely under roadside culverts in the flats near Keene proper. If you're hiking or climbing anything off Adirondack Street or the back routes toward Pitchoff, you've likely crossed it without noticing.
Porter Brook drains the north shoulder of Porter Mountain and runs west through Keene, crossing under NY-73 just south of the Johns Brook Lodge trailhead — a cold, fast stream you'll parallel or cross if you're hiking into the Johns Brook Valley from Marcy Field. It's brook trout water in the upper reaches, though fishing pressure tends to focus on the ponds and the main stem of Johns Brook itself. The stream picks up volume quickly in spring melt and after heavy rain, and the crossings on the trail to Johns Brook Lodge can run knee-deep by late April. If you're day-hiking Giant or Rocky Peak Ridge from NY-73, you'll hear it but likely won't see it — the drainage runs parallel to the road, tucked into the trees on the valley floor.
Putnam Brook runs through Keene Valley with the kind of low profile that keeps it off most hiking maps — a tributary drainage that feeds into the East Branch of the Ausable, more a reference point than a destination. It shows up in local trail directions and property descriptions, the kind of stream you cross on the way to something else rather than seek out on its own. No fish data on record, no formal access points, no camping infrastructure. If you're looking for backcountry brook trout water or a named swimming hole, this isn't it — Putnam Brook is landscape plumbing, not a feature hike.
Pyramid Brook drains north off the flanks of Hurricane Mountain, cutting through mixed forest before joining the East Branch of the Ausable River near the hamlet of Keene — one of several small, steep feeder streams that keep the Ausable system cold and oxygenated through summer. The brook takes its name from Pyramid Mountain, a minor wooded summit east of the watercourse, not from any particularly pyramidal feature of the stream itself. It's not a destination water — no formal access, no fishery data on record — but it's the kind of tributary you cross on approach hikes or hear from a tent site, moving fast after rain, barely a trickle by late August. Worth noting only if you're mapping drainage patterns or accounting for every named water in the watershed.
